internal/versioned_schema library

Defines base classes to generate lightweight tables and views. This library is used by code generated via drift_dev schema steps to generate snapshots of every schema version of your database without much overhead.

For more information on how to use that feature, see https://drift.simonbinder.eu/docs/advanced-features/migrations/#step-by-step

Warning: This library is not meant to be imported into user-written code, and classes defined in this library are not part of drift's stable API.

Classes

VersionedSchema

A snapshot of a database schema at a previous version.

VersionedTable

A drift table implementation that, instead of being generated, is constructed from individual fields

VersionedView

A constructed from individual fields instead of being generated with a dedicated class.

VersionedVirtualTable

The version of VersionedTable for virtual tables.

Typedefs

MigrationStepWithVersion = Future<int> Function(int currentVersion, GeneratedDatabase database)

Signature of a function, typically generated by drift, that runs a single migration step with a given currentVersion and the database.